CN100441836C - Hc吸附材料以及hc吸附材料的劣化判定装置 - Google Patents

Hc吸附材料以及hc吸附材料的劣化判定装置 Download PDF

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Publication number
CN100441836C
CN100441836C CNB2006101517970A CN200610151797A CN100441836C CN 100441836 C CN100441836 C CN 100441836C CN B2006101517970 A CNB2006101517970 A CN B2006101517970A CN 200610151797 A CN200610151797 A CN 200610151797A CN 100441836 C CN100441836 C CN 100441836C
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China
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sorbing material
mentioned
deterioration
output value
oxygen concentration
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CNB2006101517970A
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English (en)
Chinese (zh)
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CN1928332A (zh
Inventor
棚田浩
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Mitsubishi Motors Corp
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Mitsubishi Motors Corp
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/0807Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
    • F01N3/0814Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents combined with catalytic converters, e.g. NOx absorption/storage reduction catalysts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D53/00Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34Chemical or biological purification of waste gases
    • B01D53/92Chemical or biological purification of waste gases of engine exhaust gases
    • B01D53/94Chemical or biological purification of waste gases of engine exhaust gases by catalytic processes
    • B01D53/9445Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC]
    • B01D53/945Simultaneously removing carbon monoxide, hydrocarbons or nitrogen oxides making use of three-way catalysts [TWC] or four-way-catalysts [FWC] characterised by a specific catalyst
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N11/00Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
    • F01N11/007Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity the diagnostic devices measuring oxygen or air concentration downstream of the exhaust apparatus
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/009Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series
    • F01N13/0097Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series the purifying devices are arranged in a single housing
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/16Selection of particular materials
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/0807Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
    • F01N3/0828Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents characterised by the absorbed or adsorbed substances
    • F01N3/0835Hydrocarbons
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/0807Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents
    • F01N3/0828Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by using absorbents or adsorbents characterised by the absorbed or adsorbed substances
    • F01N3/0864Oxygen
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/50Zeolites
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2255/00Catalysts
    • B01D2255/90Physical characteristics of catalysts
    • B01D2255/912HC-storage component incorporated in the catalyst
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2510/00Surface coverings
    • F01N2510/06Surface coverings for exhaust purification, e.g. catalytic reaction
    • F01N2510/063Surface coverings for exhaust purification, e.g. catalytic reaction zeolites
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2550/00Monitoring or diagnosing the deterioration of exhaust systems
    • F01N2550/03Monitoring or diagnosing the deterioration of exhaust systems of sorbing activity of adsorbents or absorbents
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2560/00Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
    • F01N2560/02Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor
    • F01N2560/025Exhaust systems with means for detecting or measuring exhaust gas components or characteristics the means being an exhaust gas sensor for measuring or detecting O2, e.g. lambda sensors
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2560/00Exhaust systems with means for detecting or measuring exhaust gas components or characteristics
    • F01N2560/14Exhaust systems with means for detecting or measuring exhaust gas components or characteristics having more than one sensor of one kind
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/12Improving ICE efficiencies
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/40Engine management systems

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Biomedical Technology (AREA)
  • Environmental & Geological Engineering (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
CNB2006101517970A 2005-09-08 2006-09-07 Hc吸附材料以及hc吸附材料的劣化判定装置 Active CN100441836C (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2005260794A JP4766238B2 (ja) 2005-09-08 2005-09-08 Hc吸着材の劣化判定装置
JP2005260794 2005-09-08

Publications (2)

Publication Number Publication Date
CN1928332A CN1928332A (zh) 2007-03-14
CN100441836C true CN100441836C (zh) 2008-12-10

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Family Applications (1)

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CNB2006101517970A Active CN100441836C (zh) 2005-09-08 2006-09-07 Hc吸附材料以及hc吸附材料的劣化判定装置

Country Status (4)

Country Link
US (1) US7730716B2 (ja)
JP (1) JP4766238B2 (ja)
CN (1) CN100441836C (ja)
DE (1) DE102006041990B4 (ja)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4747156B2 (ja) * 2007-12-06 2011-08-17 日立オートモティブシステムズ株式会社 排気浄化装置の診断装置
US8041501B2 (en) * 2009-01-26 2011-10-18 GM Global Technology Operations LLC Method and system for monitoring an active hydrocarbon adsorber
GB2473215A (en) * 2009-09-03 2011-03-09 Johnson Matthey Plc HC trap system comprising an oxygen storage component material
US8865082B2 (en) 2009-10-05 2014-10-21 GM Global Technology Operations LLC Method and system for monitoring a hydrocarbon adsorber
US8448421B2 (en) * 2010-02-11 2013-05-28 Umicore Ag & Co. Kg HC adsorber with OBD capability
JP5024405B2 (ja) * 2010-03-09 2012-09-12 トヨタ自動車株式会社 触媒劣化検出装置
JP5789126B2 (ja) * 2011-05-25 2015-10-07 ジョンソン、マッセイ、パブリック、リミテッド、カンパニーJohnson Matthey Publiclimited Company 排ガス酸化触媒
JP5790545B2 (ja) * 2012-03-05 2015-10-07 三菱自動車工業株式会社 触媒診断装置及び触媒診断方法
US10920645B2 (en) * 2018-08-02 2021-02-16 Ford Global Technologies, Llc Systems and methods for on-board monitoring of a passive NOx adsorption catalyst
US11073061B2 (en) * 2018-09-26 2021-07-27 Ford Global Technologies, Llc Multicomponent exhaust treatment system including an oxygen storage catalyst
DE102018219332A1 (de) * 2018-11-13 2020-05-14 Continental Automotive Gmbh Abgasreinigungsanordnung und Kraftfahrzeug
JP7151696B2 (ja) * 2019-12-25 2022-10-12 トヨタ自動車株式会社 触媒劣化検出装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5337558A (en) * 1992-03-16 1994-08-16 Mazda Motor Corporation Engine exhaust purification system
US5966930A (en) * 1996-08-22 1999-10-19 Honda Giken Kogyo Kabushiki Kaisha Catalyst deterioration-determining system for internal combustion engines
CN1418730A (zh) * 2001-11-12 2003-05-21 株式会社电装 陶瓷催化剂体
JP2003260362A (ja) * 2002-03-11 2003-09-16 Babcock Hitachi Kk 炭化水素吸着燃焼触媒およびその製造方法

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3841990A1 (de) 1988-12-14 1990-06-21 Degussa Verfahren zur reduktion von stickoxiden aus abgasen
JPH05195759A (ja) * 1992-01-22 1993-08-03 Fuji Heavy Ind Ltd エンジンの触媒劣化検出方法
JP2843879B2 (ja) 1993-01-22 1999-01-06 本田技研工業株式会社 内燃エンジンの触媒劣化検出装置
US5381667A (en) * 1993-06-25 1995-01-17 Halliburton Company System and method for monitoring and controlling nitrogen pumping at an oil or gas well
JPH0899033A (ja) * 1994-09-29 1996-04-16 Idemitsu Kosan Co Ltd 炭化水素吸着剤
JP3588662B2 (ja) 1995-09-11 2004-11-17 日産自動車株式会社 触媒の自己診断装置
US5857163A (en) 1995-12-12 1999-01-05 General Motors Corporation Adaptive engine control responsive to catalyst deterioration estimation
JPH09239263A (ja) * 1996-03-07 1997-09-16 Hitachi Ltd 悪臭処理用吸着剤及びそれを用いた悪臭処理方法
JP3396378B2 (ja) * 1996-08-15 2003-04-14 トヨタ自動車株式会社 内燃機関の排気浄化方法及び装置
US6047544A (en) 1997-08-20 2000-04-11 Nissan Motor Co., Ltd. Engine exhaust gas purification catalyst and exhaust gas purifier
JPH11104462A (ja) * 1997-09-30 1999-04-20 Ngk Insulators Ltd 排ガス浄化用触媒−吸着体及び排ガス浄化方法
JP3500941B2 (ja) * 1997-12-26 2004-02-23 日産自動車株式会社 排気浄化装置の診断装置
US6334304B1 (en) * 1999-04-16 2002-01-01 Honda Giken Kogyo Kabushiki Kaisha Degradation discrimination system of internal combustion engine exhaust gas purification system
JP3859940B2 (ja) * 1999-08-06 2006-12-20 日産自動車株式会社 排気ガス浄化用触媒及びその製造方法
JP2001073746A (ja) * 1999-09-03 2001-03-21 Honda Motor Co Ltd 排ガス吸着材の劣化状態評価方法
JP2002089242A (ja) * 2000-09-13 2002-03-27 Mazda Motor Corp エンジンの排気浄化装置
JP2002155731A (ja) * 2000-11-21 2002-05-31 Toyota Motor Corp 内燃機関の排気浄化装置
JP3870749B2 (ja) * 2001-01-16 2007-01-24 株式会社デンソー 内燃機関の排気浄化装置
JP4506003B2 (ja) * 2001-02-27 2010-07-21 マツダ株式会社 エンジンの排気浄化装置
JP2003041991A (ja) * 2001-07-30 2003-02-13 Hitachi Unisia Automotive Ltd エンジンの触媒劣化診断装置
US6761875B2 (en) 2001-09-05 2004-07-13 Engelhard Corporation Rare earth silicate molecular sieves
EP1424471B1 (en) * 2001-09-05 2010-03-10 Honda Giken Kogyo Kabushiki Kaisha Deteriorated state evaluation device for exhaust emission control equipment
JP3926694B2 (ja) * 2001-09-07 2007-06-06 本田技研工業株式会社 排気ガス浄化装置の状態判定装置
JP2003097324A (ja) * 2001-09-27 2003-04-03 Mazda Motor Corp エンジンの排気浄化装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5337558A (en) * 1992-03-16 1994-08-16 Mazda Motor Corporation Engine exhaust purification system
US5966930A (en) * 1996-08-22 1999-10-19 Honda Giken Kogyo Kabushiki Kaisha Catalyst deterioration-determining system for internal combustion engines
CN1418730A (zh) * 2001-11-12 2003-05-21 株式会社电装 陶瓷催化剂体
JP2003260362A (ja) * 2002-03-11 2003-09-16 Babcock Hitachi Kk 炭化水素吸着燃焼触媒およびその製造方法

Also Published As

Publication number Publication date
DE102006041990A1 (de) 2007-03-15
JP4766238B2 (ja) 2011-09-07
CN1928332A (zh) 2007-03-14
JP2007069152A (ja) 2007-03-22
US7730716B2 (en) 2010-06-08
DE102006041990B4 (de) 2013-12-05
US20070051094A1 (en) 2007-03-08

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